water cost Articles
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Comparative study of disinfectants for use in low-cost gravity driven household water purifiers
Point-of-use (POU) gravity-driven household water purifiers have been proven to be a simple, low-cost and effective intervention for reducing the impact of waterborne diseases in developing countries. The goal of this study was to compare commonly used water disinfectants for their feasibility of adoption in low-cost POU water purifiers. The potency of each candidate disinfectant was evaluated ...
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Reference: Clever water recycling with chlorine dioxide
Vapour water at the Crailsheim-Dinkelsbühl dairy is disinfected and then returned to the production process by means of a chlorine dioxide system. The great news is that this significantly reduces water consumption and operating costs. Fewer costs The 160 members of staff at the diary "Milchwerk Crailsheim-Dinkelsbühl eG" process around 130,000 tonnes of milk a year, mainly producing ...
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Evaluation of a silver-ion based purification system for rainwater harvesting at a small-scale community level
Silver has been known for centuries to be a powerful disinfectant, with no known harmful effects to humans if applied in adequate doses. Although its use was partially discontinued with the advent of chlorination and modern antibiotics, the discovery of bacterial resistance and disinfection by-products has enabled its re-emergence as a viable water purification option. On the other hand, ...
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Effective distribution of edible oils
Edible oil was injected at five sites to promote reductive dechlorination. The edible oil was injected as a non-aqueous phase liquid (NAPL) or as an emulsion of oil, an emulsifier, and water. At Dover Air Force Base, injection of the emulsion into a barrier resulted in greater distribution of the total organic carbon (TOC) and more rapid dechlorination than direct injection of the edible oil into ...
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Ultraviolet disinfection systems, the best solution to school swimming pools
School swimming pools are a valuable asset, and are now present in the majority of high schools and higher education facilities throughout the UK. Whilst school pools vary in size, shape and usage, many school swimming facilities are facing a common dilemma in their water disinfection strategy. Existing treatment regimes are often badly designed, under sized or simply outdated, which is leading ...
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Deterioration in water quality from supply chain to household and appropriate storage in the context of intermittent water supplies
Many water providers in urban developing country contexts have to supply the water intermittently due to the disparity between rapidly growing demand and investment in supply infrastructure. This can lead to water quality risks such as ingress of polluted groundwater and unsafe household storage. This study has investigated the common risks and possible alternative solutions down the supply chain ...
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Optimal use of chlorine in water distribution networks based on specific locations of booster chlorination: analyzing conditions in Mexico
Water distribution networks (WDNs) could present problems of pathogen intrusion that affect the health of consumers. One solution to diminish this risk is to add more disinfectant to the water at the drinking water treatment plant (DWTP). However, this increases the cost of water treatment and may also cause the formation of trihalomethanes. Mexico has the largest bottled water market in the ...
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Desalination gets a graphene boost
Original story at MIT News Jeffrey Grossman applies new materials research to making desalination cheaper and more efficient. With the intensifying drought in California, the state has accelerated the construction of desalination plants. Yet due to high construction and operating costs, as well as environmental concerns, we’re not likely to see reclaimed seawater represent more than a ...
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Georgia pacific improves energy and operating efficiences with a Culligan solution
Challenge Water is a valuable commodity in any manufacturing process. Manufacturing companies depend on clean, quality water throughout their entire business, such as for boiler feed water make-up, recycling back to cooling towers, improved process run times and overall quality and consistency of production. With the need for steam in their daily operation, Georgia-Pacific was using a ...
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Banham Zoo
Banham Zoo in Norfolk has solved a long-standing problem with the water quality in its South African Fur Seal pool by adopting the latest technology – ordinarily used in commercial swimming pools.The 35-acre zoo attracts over 200,000 visitors per annum and a key attraction is the Fur Seal pool. It holds approximately 64,000 gallons of water, but due to the size of the Fur Seals (especially the ...
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South Australia - Great Leap Forward in Water Treatment
Residents in the Adelaide Hills are receiving clean and filtered water from a $7.5 million water treatment plant using worldfirst technology and reducing the need for chlorine disinfection. The plant at Mt Pleasant has seen SA Water roll out its MIEX (magnetic ion exchange) resin technology, which reduces the level of dissolved organic carbon (DOC) in drinking water, the main cause of colour, ...
By Ixom
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Full Scale advanced oxidation process for TOC removal and cost reduction by reclaiming water
For many commercial and industrial operations, looking at ways to reduce water and wastewater monthly bill costs, water reclaim is essential. A major water treatment challenge encountered in the search for new water sources is the reduction of total organic carbon (TOC) and Chemical Oxygen Demand (COD) at one or more locations. Properly designed advanced oxidation processes have demonstrated ...
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How do we generate water at GENAQ?
The operation of GENAQ atmospheric water generators is very simple: they exactly replicate the process of rain. To do this, they take air from outside, filter it and extract its humidity. Once water is condensed, it is treated to obtain the highest water quality at the lowest energy cost. Do you want to learn more about how they work? One of our technology specialists, Álvaro Reymundo, ...
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DNAPL Characterization Methods and Approaches, Part 2: Cost Comparisons`, Ground Water Monitoring & Remediation
Contamination from the use of chlorinated solvents, often classified as dense nonaqueous phase liquids (DNAPLs) when in an undissolved state, pose environmental threats to ground water resources worldwide. DNAPL site characterization method performance comparisons are presented in a companion paper (Kram et al. 2001). This study compares the costs for implementing various characterization ...
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Cost Benefits of Process Water Disinfection via UV Light Sterilizer Technology
Water is a substance that has many unique properties unlike any other fluid in the world. It is certainly a vital component of the survival of organic life, but it is also extraordinarily useful in industrial, municipal, and commercial processes. Process water makes up a significant portion of water use in the commercial and industrial sectors and depending on the industry and site, can be used ...
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GENAQ: Pure water thanks to its exhaustive treatment
GENAQ atmospheric water generators take in ambient air, filter it and extract its moisture. Once the water is extracted by condensation, it is specially treated to obtain the highest quality water at the lowest energy cost. One of the main characteristics that make GENAQ’s atmospheric water generators superior is the quality of the water generated. Equally important is generating ...
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Biofouling by bryozoans,
Cordylophora and sponges in UK water treatment worksIn recent years biofouling from native (bryozoans, sponges) and non-native (Cordylophora) animals has increased in UK water treatment works (WTW). A survey of six UK water companies and eight WTWs revealed that these taxa were more widespread and abundant than previously recognised. Primary problems related to the occlusion of underfloor nozzles and tailpipes in rapid gravity filter beds (RGFs). ...
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Case Study: UV254 Organics Analyzer Helped Save 20-30% in Chemical Costs for Drinking Water Treatment
The Ridgway Water Treatment Plant (WTP) in Elk County Pennsylvania uses a Real Tech Real UV254 online analyzer to achieve a 20-30% savings in annual coagulant use in their conventional water treatment process. The dual-feel Real UV254 analyzer is used to continuously monitor raw and finished water dissolved organics via a single online analyzer. Beyond operational cost savings, the Real UV254 ...
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Synergistic electric field enhancement of the effectiveness of chlorine species formed during electrochemical disinfection of drinking water
In line in situ electrochemical disinfection of drinking water with chloride concentrations as low as 10 mg/L has been demonstrated at practical flow rates of at least 3 m3/day using a novel perforated electrode flow through (PEFT) cell with a 50 μm inter-electrode gap. Sufficient chlorine to achieve 6 log inactivation of Escherichia coli bacteria was produced at applied voltages as low ...
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A compact point-of-use water purification cartridge for household use in developing countries
Simple, low-cost household interventions are known to be effective in lowering the incidence of waterborne diseases in developing countries. However, high costs along with operational and maintenance issues have prevented the successful adoption of these interventions among the affected communities. To address these limitations, a cost-effective, gravity-driven water purification cartridge has ...
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